An example for water - formic acid - acetic acid separation is given work.文中给出了水─ — 甲酸─ — 乙酸系统分离的示例.One advisable way is to synthesize NFM acylating morpholine with formic acid as acylating agent.较可取的是以甲酸为酰化剂,吗啉酰化初期强放热反应...
Stop cracking safes and live straight.别再砸保险箱了,规规矩矩过日子罢.Did the ancients have exchequers or safes?古人有金库或保险箱 吗 ?We shall be pleased to show you some of our safes.我们将乐意您参观本公司所出售几种保险柜.We shall be pleased to show you some of ...